Some Halloween costumes are designed for broad recognition. Others require an explanation before the joke lands. In 2026, technology inspired a particularly specific collection of outfits, including chatbot error messages, data centers and Silicon Valley pairings.
Several costumes focused on ChatGPT and its limits. One version portrayed the chatbot stopping for a drink of water before answering every question, a reference to the water used to cool some data centers supporting artificial intelligence systems. Other designs featured a fuzzy black-and-white logo, a message-limit warning and a “Get Pro” button.
Claude also appeared as a costume. Joseph Henry posted an orange, furry version carrying a “Daily limit reached” sign, while creator Delia Lazarescu shared a similar look and credited the chatbot with causing “emotional damage.” Both outfits played on the frustration of being stopped by a usage limit during a conversation.
Data centers themselves became another Halloween choice. One Instagram user described wearing a cardboard box covered in wires as “the scariest thing I could think of,” adding a topical reference to the concerns surrounding the growth of artificial intelligence.
A Silicon Valley-inspired couples costume paired Alexandr Wang, Meta’s chief AI officer, with Muse, the company’s personal AI agent. The reference was recognizable mainly to people following the technology industry and was less likely to be immediately understood at a general Halloween party.
Cybersecurity also provided material for a costume. A black T-shirt featuring a large number four referenced compromised private keys associated with digital certificate provider eMudhra. The post explained that Cloudflare had said the keys were weak enough to be recovered almost instantly from public certificates. The shirt included private-key text and additional numbers, turning a technical security incident into a wearable joke.
Other costumes demanded even more specialist knowledge. Melissa Chen shared an image of a friend dressed as a visualization of OpenAI’s proposed Navier–Stokes solution, while another post referenced an AI escaping its sandbox in a Hugging Face incident. Together, the outfits showed how online culture and technology news have become sources for increasingly niche Halloween humor.
Sources: Mashable.